軸向振動對溝槽式毛細結構熱管之影響分析
description
Transcript of 軸向振動對溝槽式毛細結構熱管之影響分析
-
Effects of axial vibrations on grooved heat pipes:
:
-
(heat pipe)
CPULED
-
()
LEDLED
-
Evaporator SectionAdiabatic SectionCondenser Section
-
(Qmax)
(R)R:/WQ:WTec : ()
-
Gaugler(1942)Heat transfer Device
Grover(1963)Evaporation-Condensation Heat Transfer DeviceHeat Pipe
-
()Xie(1998)CPU
Deverall(1967)stainless steel/water
-
()Richardson (1970)stainless steel/water
Maziuk(2001)
-
()Charlton(1992)Charlton and Bowman(1994)302501000Hz
Namba(1998)
-
()Huber(1994)30 Hz50 Hz2g9.6%6.1%
-
()
45
-
:8mm:600mm:::
-
()
-
()
-
()
4590
-
()Unit:gTc=30deg CTc=20deg CTc=40deg C
f=3Hz f=4Hzf=5Hzf=6Hzf=9Hzstaticr=2.8mm0.100.180.280.410.91r=5mm0.180.320.50.72r=10mm0.360.641.01r=15mm0.540.97r=20mm0.72r=25mm0.91
f=3Hzstaticr=5mm0.18r=10mm0.36r=15mm0.54r=20mm0.72
f=3Hzstaticr=5mm0.18r=10mm0.36r=15mm0.54r=20mm0.72
-
()117.550.750198.4149.965.7
-
()
-
()
-
()45
-
()45
-
()45
-
()45
-
()
45180W 0.25/W
45
-
Thanks for your attention
-
()x =rsintv=r cost = 2 f (=2/TT=1/ f) a=-r 2 sin t
v=r =2r fa=r 2= r (2f)2
*rsintr()GGG0.02~0.1GG0.1G3Hz~18Hz2.8mm5mm10mm